Edge Browser
At the top right hand corner of Edge there are three dots ... click on them.
Click Settings
Click Cookies and Site permissions ensure JavaScript is Allowed
Click Favourites from the right of the address bar where there is an icon that looks like a star with three lines then go to Manage Favourites then to Show favourites bar ensure the checkmark is against Always
Open a new tab on the browser.
Click the star with a plus which is at the end of the address bar to add a favourite.
Name the favourite WACHS Bookmarklet, click More then paste the following line into the URL field and save.
javascript:void(location.href='https://login.wachslibresources.health.wa.gov.au/login?qurl='+location.href)
You will now have a favourite saved on the favourites bar called WACHS Bookmarklet.
Click the WACHS Bookmarklet when you are viewing an article to add the library's authentication string.
Try it with this article URL - https://www.nejm.org/doi/full/10.1056/NEJMoa2307563 When you are viewing that page, click on the WACHS Bookmarklet from your favourites bar.
Firefox
Right click on this link: WACHS Bookmarklet
Select Bookmark This Link. Alternatively, click and drag the link to your Bookmarks toolbar.
Safari
Click on and drag this link to your Bookmarks bar: WACHS Bookmarklet
Google Chrome
Click on and drag this link to your Bookmarks bar: WACHS Bookmarklet
Testing it
Try going to this URL: https://www.bmj.com/content/353/bmj.i2282 - full text access is not available. Now click on the WACHS Bookmarklet you've saved on the favourites bar. This will insert the library authentication string into the web address and allow full text access.